Volvo 240/740/760/780/940/960 1990-1998

Engine Fan

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REMOVAL & INSTALLATION



Belt Driven Type
  1. Disconnect the negative battery cable.
  2.  
  3. If equipped with a two-piece shroud, remove the top section of the fan shroud.
  4.  
  5. Loosen the adjusting bolts and slacken the drive belts.
  6.  
  7. Remove the fan mounting bolts.
  8.  
  9. Remove the fan assembly.
  10.  

To install:
  1. Install the engine fan.
  2.  
  3. Tighten the fan mounting bolts.
  4.  
  5. Adjust the drive belt(s) to the specified tension.
  6.  
  7. If removed, install the top half of the fan shroud.
  8.  
  9. Connect the negative battery cable.
  10.  

Electric Cooling Fan

Some models are equipped with electric cooling fans. The fan function is controlled by a thermocontact placed in the upper right corner of the radiator. Some vehicles may be equipped with a thermal switch in the radiator end tank or lower radiator hose. The fan, on most models, will generally switch ON when coolant temperatures are 190-212°F (88-100°C).

B6304F engines are fitted with a fully electric radiator fan. The 2-speed fan is mounted behind the radiator. The fan is controlled by a relay, in response to either temperature signal sent to the Motronic control unit or directly by the pressure switches mounted in the A/C high-pressure circuit. The relay is mounted on a bracket in front of the battery.

Except 850/C70/S70/V70
  1. Disconnect the negative and positive battery cables.
  2.  
  3. Remove the battery holder, as required.
  4.  
  5. Remove the harness connector on the crossmember.
  6.  
  7. Undo the relay and remove the ground lead from the terminal on the right-hand wheel housing in the engine compartment.
  8.  
  9. Remove the fan shroud, if required.
  10.  
  11. Remove the cooling fan mounting bolts.
  12.  
  13. Remove the fan assembly from the vehicle.To install:
  14.  
  15. Install the fan assembly in the vehicle.
  16.  
  17. Tighten the mounting bolts.
  18.  
  19. Install the fan shroud and tighten the bolts.
  20.  
  21. Connect the ground lead, and attach the relay connector.
  22.  
  23. Attach the connector on the crossmember.
  24.  
  25. Install the battery holder as required.
  26.  
  27. Connect the battery cables.
  28.  
  29. Start the engine and check cooling fan operation.
  30.  

850/C70/S70/V70

See Figures 1, 2, 3, 4, 5, 6 and 7

  1. Disconnect the negative battery cable.
  2.  
  3. Remove the two retaining bolts on relay holder from the top of the radiator.
  4.  
  5. Remove the control module and air intake hoses.
  6.  
  7. Remove the four fan mounting bolts.
  8.  
  9. Pull the fan up and unplug the relay and fan connectors.
  10.  
  11. Remove the fan from the vehicle.
  12.  

To install:
  1. Place the fan into the engine compartment and attach the relay and connectors.
  2.  
  3. Tighten the four fan retaining bolts.
  4.  
  5. Install the air hoses.
  6.  
  7. Tighten the relay holder retaining bolts.
  8.  
  9. Connect the negative battery cable.
  10.  



Click image to see an enlarged view

Fig. Fig. 1: Remove the retaining bolts on the drivers side ...



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Fig. Fig. 2: ... and passenger side of the radiator



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Fig. Fig. 3: Slide the relay holder toward the engine



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Fig. Fig. 4: Remove the air hoses from the control module box and the air cleaner



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Fig. Fig. 5: Remove the connectors from the fan assembly



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Fig. Fig. 6: After the retaining bolts are removed, carefully maneuver the fan up ...



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Fig. Fig. 7: ... and out of the engine compartment

 
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